So I made the jump this weekend to save the coolant system in my truck. I am at 150k so I was due for a flush anyways. The first thing I wanted to do was see if I was having any major catastrophic failure. On friday I installed the Edge Insight CTS and EAS EGT probe (only took about 45 minutes to install) and drove around an hour. I was seeing deltas between EOT and ECT get around 13 but were staying pretty consistenly arond 9-10. I felt pretty good about these numbers but had already purchased all the needed materials to do the flush.
Friday night I got all my materials organized in the shop. I had 2 quarts of VC-9, 1 gallon of restore, 48 gallons of distilled water, a new thermostat and housing, a new degas bottle, ford blue spring upgrade, a Sinister coolant filtration system, and a new alternator.
The next morning the work began. Make sure you have plenty of time. The flush and coolant filtration install took me around 12 hours to complete but I was very thorough. I first drianed the coolant system to see what I was working with.
As you can see THANK GOD someone before me had changed out the Ford Gold crap already. This is probably while I was seeing such good deltas. After I drained the system I filled with water and ran for 15 minutes then drained the radiator and the driver side block. I never did remove the passenger side plug. I beleive this cost be a few more flushes but I wasn't really worried about the time. It was a beautiful day and my 2 year old boy and my girl were hanging out with me.
After the initial drain I removed the thermostat and added 1/2-3/4 of a gallon of restore. 6.0 have a 7 gallon filtration system and the bottle calls for 1 gallon to every 10 gallons. Once I topped it off with distilled water I turned the heater on high, loaded up the crew, and went for a 72 mile drive to another one of our shops. When I arrived there I drained the system and saw basically clear water with nothing crazy in it. Just looked like soapy water coming out of the radiator. When I drained the block there was some brown in there but not to much. Sorry I missed the picture on this drain. After that I filled the system with distilled water and me and the family went to lunch. I came back from lunch and once again drained the system completely. I then added the VC-9 and distilled water, cranked up the heater, and began my 72 mile cruise back to the homeland.
When I returned back to the shop I drained the system and had quite different results this time.
The results were a very milky thick concentrate that you could barely see through. I didn't notice alot of sediment in the bottom but it was extremely hazey.
After this was done it was time to do some major flushing to get it clear. I changed out the degas bottle and began doing distilled flushes with 15 minute running intervals in between. I originally purchased 48 gal of distilled water and when I was done I only had 4 left. I spent probably 3 hours filling and flushing to get completely clear, no smell, water.
As you can see this water is literally crystal clear and had zero chemical smell to it. Now that that was done I plugged the system back up completely, reinstalled the thermostat, and installed the Sinister Coolant system. The Sinister kit comes with pretty good instructions on how, and where, to install the kit.
After the kit was completely installed I added 3.5 gallons of Chevron Delo ELC (Cat certified and 1,000,000 change intervals!) and topped off with distilled water. At this point it was 11:30 pm and I had started at 11am so I decided it was time to call it a night.